Drag device for spinning machinery.



Nofasgssz. Patented flan. 28. |902. T. wATsoN.

DRAG DEVICE F0 RSPIN'NINB MACHINERY,

(Application med muy 17', 1901.)

Patented Ian. 28, |902.

' T. wATsoN.

DRAG DEVICE FOR SPINNING MACHINERY.

(Application filed July 17, 1901.) (No Model.) 2 sheets-shut 2.

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NITED STATES Artnr Ormea;

THOMAS IVATSON, OF BRIDGE OF VEIR, SCOTLAND, ASSIGNOR TO ERNESTSYMINGTON COATS, OF PAISLEY, SCOTLAND.

DRAG DEVICEFOR SPINNING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 691,992, dated January28, 1902. Original application flied April 12, .1901, Serial No. 55,514.Divided and this application filed July 17, 1901. Serial T @ZZ whom itmay concern:

Be it known that I, THOMAS WATSON, a sub ject of the King of GreatBritain and Ireland, andaresidentof Bridge of Weir, in the county ofRenfrew, Scotland, (whose postal address is Glenapp, Bridge of Weir,Scotland,) have invented a certain Improved Drag or Brake Device forSpinning and Doubling Machinery, (for which application for a Britishpat- Io ent has been made, No. 16,816, dated September 21, 1900,) ofwhich the following is a specification.

My said invention has for its object to provide an improved drag orbrake device for a yarn-spindle, so as thereby to produce a practicallyequal tension throughout the building of the cop or bobbin at a veryhigh velocity. In the accompanying drawings, Figure 1 is 2o a plan, andFig. 2 a side elevation, ot' the improved drag or brake device shown asapplied to a spindle. Fig. 3 is a plan, on areduced scale, of the dragand connected parts and showing their position on the spinningframe.Fig. 4 is a plan of adetail in connection therewith. Fig.V 5 is a sideelevation of the detail of Fig. 4.

As shown in the drawings, the improved drag or brake device foreachyarn-spindle 3 3o consists of a two-armed lever 131, pivoted on abracket 132, fixed to the back of the building or movable rail 29, whichhas a regular npWard-and-downward movement imparted to it. The upperbrake-arm 133 is preferably made of sheet metal and has its lower endfixed to a knee-like extension 134 of the lever. The upper end of thebrake-arm 133 bears against the lower shoulder part 38 of the spindle 3,being faced with iiannel or other suit- 40 able material. The end ofthelower arm 135 of the lever 131 is acted on by a wedge-piece 136,fixed to a rod or bar V137, fitted to slide longitudinally in guidesfixed to the movable rail29, (one end guide 138 only being shown,) a5the inner side 140 of the wedge-piece having the wedge-shaped form, asshown in Fig. 1. The wedge-piece 136 is fixed to the upper side of thebrake-bar 137 by means of a screwed pin 141, which passes through a longslot 142 5o in the wedge-piece and is then screwed into (No model.)

the bar, a washer being interposed between the head of the pin and theface of the wedgepiece. By this means the wedge-piece 136 can beconveniently adjusted on the bar, as by simply slackening the pin 1 41the werlge- 55 piece can be thereafter shifted along the bar to theposition required, the clearance-slot 142 permitting of this adjustingmovement. The brake-bar 137 is moved in a positive or forward direction,so as to brake the spin- 6o dle 3 by the following automaticarrangement: A toothed rack-piece 143, sliding in the end guide-bracket138, has its inner end butting up against the end of the brake-bar 137when the bar is in its normaler working position. The rack is arrangedto gear witlia pinion 144 on a transverse shaft 145, mounted in abracket-piece 113, fixed to the movable rail 29. The shaft 145 has on ita worm-wheel147, gearing with a worm 148 on a vertical spindle 112, 7oiitted in the bracket, the spindle having on its upper end aratchet-wheel 118, engaging with a pawl124 on a spring-controlledtappet-lever 123, :fitted to turn loosely around the upper end of thespindle and arranged to be acted on by a projecting cam-piece orequivalent part (not shown) fitted to a fixed part of the framing.During each upward-and-downward stroke of the rail 29 the tappet-lever123 encounters the projecting cam-piece, so 8o that the lever is thusmoved around to work the vertical spindle 112, thereby actuating thetoothed rack-piece 143 and brake-bar 137 as required. With thisarrangement each automatic movementof the brake-bar 137 thus 85causes-the wedge-pieces 136 to act against the lower arms of thebrake-levers, so that the ends of the upper arms 133 of the levers arepressed against the yarn-spindles 3, so as to impart the requisitebraking and regulat- 9o ing action. When the winding of the cops iscompleted, the rack 143 and the-brake-bar 137 are returned back to theirstarting positions. The return of the rack 143 is accomplished by simplydiseugaging the pawl 124 95 from the ratchet-wheel 118 and thereafterturning back the vertical spindle by means of an adj usting-handle 117,fitted to the wheel. The brake-bar 137, however, is returned to itsstarting position by means of a spring 149, ico

Fig. 3, one end of which is fixed to the guidebracket 138, the other endbeing fixed to an inwardly-projecting pin 150 on the brake-bar. Thepositive or wedging movement given to the brake-bar 137 by therack-piece 143 is made against the tension action of the spring 149; butwhen the rack is moved back from the brake-bar the pressure o-n thespring is removed, so that the spring recovers itself, and thereby drawsback the brake-bar to its starting position, as required. The dragaction on the yarn-spindles 3, as hereinbefore described, increases inproportion to the increasein the diameter of the cop being formed, andthis desirable action has the effect of producing an even drag at a veryhigh velocity. The drag or brake device is also arranged to impart aneXtra braking action to the yarnspindles 3, so as to prevent thepossibility of the spindles overrunning themselves and so not stoppingsimultaneously with the fliers when the spinning-frame is stopped. Incarrying out this arrangement, which is clearly shown in Fig. 3, for oneside of the frame the driving-belt shifteror stop-handle (not shown) isconnected by a lever (not shown) to a crossshaft 151, mounted on theframing, this shaft having fixed to it a vertical lever 152, connectedby a rod 154 to a lever 155, working on avertical stud 156, iXed to across-bar 157, secured to a tiXed part of the framing. The outer arm 158of the horizontal lever 155 is arranged to act against theinwardly-projecting pin 150,ixed to the brake-bar 137, the end of thearm being made with a suflicient vertical extension 159 so that it canalways act on the projecting pinv 150 at any point in the stroke of themovable rail 29. With this arrangement when the belt-shifter orstophandle is moved to stop the frame it imparts movement to thehorizontal lever 155, which then acts on the brake-bar 137, so as togive it a further positive movement and force each wedge-piece 136farther in against the lower arm 135 of each brake-lever 131,therebyimparting the requisite extra braking action to theyarn-spindles3 and arresting their m otion, vso as to cause them to stopsimultaneously with the fliers, as required. When the frame :is startedagain by a return movement of the belt-shifter or stop-handle thebrake-bar 137 is pulled back to its former position by the action of itstension-spring 149.

What I claim as my invention is- 1. An improved drag or brake device forspinning and doubling machinery, comprising a building-rail, a two-armedlever centered at the back of the rail, spindle-bolsters and spindles onthe rail, the end of the upper arm of the lever being adapted to bear onthe spindle, in combination with a spring-controlled brake-rod having anadjustable wedgepiece and guides for the rod carried by the rail, saidWedge-piece being adapted to bear against the lower arm of the lever,substantially as described.

2. An improved drag or brake device for spinning and doubling machinery,comprising a building-rail, a two-armed lever centered at the back ofthe rail spindle-holsters and spindles on the rail, the end of the upperarm of the lever being adapted to bear on the spindle, in combinationwith a spring-controlled brake-rod having an adjustable wedgepiece, andguides for the rod carried by the rail, said wedge-piece being adaptedto bear against the lower arm of the lever, a toothed rack adapted toslide in said guide and abut against the inner end of the brake-rod, apinion engaging the rack, a shaft for the pinion, a worm-wheel on theshaft, a vertical spindle, a worm thereon engaging said wormwheel, aratchet-wheel and pawl to operate the vertical spindle, and a framecarrying such mechanism carried by the building-rail, substantially asdescribed.

3. An improved drag or brake device for spinning and doubling machinery,comprising a building-rail, a two-armed lever eentered at the back ofthe rail, spindle-holsters and spindles on the rail, the end of theupper arm of the lever being adapted to bear on the spindle, incombination with a spring-controlled brake-rod having an adjustablewedgepieee, and guides for the rod carried by the rail, said wedge-piecebeing adapted to bear against the lower arm of the lever, a twoarmedlever to act on the brake-rod, a crossshaft, and a rod from thecross-shaft to operate said lever, as and for the purpose described.

4. An improved drag or brake device for spinning and doubling machinery,comprising a building-rail, a two-armed brake-lever thereon, aspring-controlled brakerod, a wedge-piece thereon, a rack to operate therod, suitable gearing to operate the rack, and a ratchet to operate saidgearing in combination with a cross-shaft and means for operating thewedge-piece from the cross-shaft, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

THOMAS WATSON.

Vitnesses:

DAVID FERGUSON, GEORGE PATTERsoN.

IOC

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